C. Cause your just standing in line holding a tray.
The answer is c, because ball is falling so its gravitationl potential energy decreases, but it kinetic energy increases. Energy is always conserved.
Answer:
The ball took 0.4 seconds
Explanation:
» From the second newton's equation of motion.

- s is displacement, s = 80cm, s = 0.8 meters
- u is initial velocity, u = 0 [ from rest ]
- g is 10 m/s²

The north and North Pole or the south and the South Pole are facing each other which is causing them to repel